"The French text presented in this volume is taken from that of a Leyden edition of 1748...The title page of this edition is reproduced in the present volume."--Pref
The translation is founded on a version made by Miss Gertrude C. Bussey (from the French text in the edition of J. Assezat) and has been revised by Professor M.W. Calkins, who is responsible for it in its present form, cf. Pref
"Works consulted and cited in the notes": p. [205]-207